package com.jxy.wx.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class AdminFilter implements Filter {

	public void destroy() {
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
			throws IOException, ServletException {
		HttpServletRequest req = (HttpServletRequest) request;
		HttpServletResponse res = (HttpServletResponse) response;

		HttpSession session = req.getSession();

		// 登录后才能进入下一步处理，否则直接进入错误提示页面
		if (session.getAttribute("role") != null) {
			chain.doFilter(request, response);
		} else {
			res.sendRedirect("../err/error.jsp?code=403");
		}

	}

	public void init(FilterConfig arg0) throws ServletException {
	}

}